Thank you all for the votes -- the one-gallon jugs of new-crop Vermont maple syrup will be mailed out as soon as the sap starts running. Like Jazzo's marbelous bluff, the definition I supplied is also a real technique, and after asking several people here in the office and emailing my old professor, it seems it is a technique in need of a name. Therefore, unless it imperils my point total for this round, I decree that the technique in which a thin line of mortar is excised from a joint and then filled with white lime will hereinafter be known as a scrivello joint.